Home / 2,862.10-4,292.17-1,218.20

Finding the Fourth Proportional to 2,862.10, 4,292.17 and 1,218.20

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Solution

The fourth proportional to 2,862.10, 4,292.17 and 1,218.20 is: 1,826.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.10 : 4,292.17 = 1,218.20 : x
  2. Step 2: Convert to fraction form
    2,862.10/4,292.17 = 1,218.20/x
  3. Step 3: Cross multiply
    2,862.10x = 4,292.17 × 1,218.20
  4. Step 4: Simplify right side
    2,862.10x = 5,228,721.49
  5. Step 5: Solve for x
    x = 5,228,721.49/2,862.10
  6. Step 6: Final answer
    x = 1,826.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.